off one's trolleySee: OFF ONE'S ROCKER.
{adj. phr.}, {informal} Not thinking correctly; crazy; silly; foolish.
Tom is off his rocker if he thinks he can run faster than Bob can. If you think you can learn to figure skate in one lesson, you're off your trolley. Syn.: OUT OF ONE'S HEAD.
[TahlilGaran] English Idioms Dictionary ▲